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fix rendering when there's no peers 

Signed-off-by: Jakub Sokołowski <jakub@status.im>
This commit is contained in:
Jakub Sokołowski 2019-07-03 14:04:14 -04:00 committed by Jakub
parent b80307301e
commit 6ba165319f
1 changed files with 12 additions and 7 deletions
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19
render.go
View File

@ -18,15 +18,16 @@ func GenRenderFunc(g *gocui.Gui, sc *StateController) func() {
} }
func renderPeerList(g *gocui.Gui, peers []Peer) { func renderPeerList(g *gocui.Gui, peers []Peer) {
if len(peers) == 0 {
return
}
g.Update(func(g *gocui.Gui) error { g.Update(func(g *gocui.Gui) error {
v, err := g.View("main") v, err := g.View("main")
if err != nil { if err != nil {
return err return err
} }
v.Clear() v.Clear()
if len(peers) == 0 {
fmt.Fprintf(v, "No peers found.\n")
return nil
}
maxWidth, _ := g.Size() maxWidth, _ := g.Size()
for _, peer := range peers { for _, peer := range peers {
fmt.Fprintf(v, "%s\n", peer.AsTable(maxWidth)) fmt.Fprintf(v, "%s\n", peer.AsTable(maxWidth))
@ -36,15 +37,16 @@ func renderPeerList(g *gocui.Gui, peers []Peer) {
} }
func renderPeerInfo(g *gocui.Gui, peer *Peer) { func renderPeerInfo(g *gocui.Gui, peer *Peer) {
if peer == nil {
return
}
g.Update(func(g *gocui.Gui) error { g.Update(func(g *gocui.Gui) error {
v, err := g.View("info") v, err := g.View("info")
if err != nil { if err != nil {
return err return err
} }
v.Clear() v.Clear()
if peer == nil {
fmt.Fprintf(v, "No peer selected.")
return nil
}
fmt.Fprintf(v, strings.Repeat("%-8s: %v\n", 8), fmt.Fprintf(v, strings.Repeat("%-8s: %v\n", 8),
"Name", peer.Name, "Name", peer.Name,
"ID", string(peer.ID), "ID", string(peer.ID),
@ -59,12 +61,15 @@ func renderPeerInfo(g *gocui.Gui, peer *Peer) {
} }
func updatePeerCursor(g *gocui.Gui, current int) { func updatePeerCursor(g *gocui.Gui, current int) {
// no need to move cursor if nothing is selected
if current < 0 {
return
}
v, err := g.View("main") v, err := g.View("main")
if err != nil { if err != nil {
log.Panicln("unable to find main view") log.Panicln("unable to find main view")
} }
cx, _ := v.Cursor() cx, _ := v.Cursor()
if err := v.SetCursor(cx, current); err != nil { if err := v.SetCursor(cx, current); err != nil {
ox, _ := v.Origin() ox, _ := v.Origin()
if err := v.SetOrigin(ox, current); err != nil { if err := v.SetOrigin(ox, current); err != nil {